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| author | Nathan Fontenot <nfont@austin.ibm.com> | 2009-11-25 00:10:49 +0300 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 09:09:32 +0300 |
| commit | ab519a011caa5ec47d992cb8a4fc8e7af9b9e3f8 (patch) | |
| tree | a76bb05e86bbc12fe4041a1552a0543f44c4f738 /arch/powerpc/include/asm/pSeries_reconfig.h | |
| parent | 1496e89ae2a0962748e55165a590fa3209c6f158 (diff) | |
| download | linux-ab519a011caa5ec47d992cb8a4fc8e7af9b9e3f8.tar.xz | |
powerpc/pseries: Kernel DLPAR Infrastructure
The Dynamic Logical Partitioning capabilities of the powerpc pseries platform
allows for the addition and removal of resources (i.e. CPU's, memory, and PCI
devices) from a partition. The removal of a resource involves
removing the resource's node from the device tree and then returning the
resource to firmware via the rtas set-indicator call. To add a resource, it
is first obtained from firmware via the rtas set-indicator call and then a
new device tree node is created using the ibm,configure-coinnector rtas call
and added to the device tree.
This patch provides the kernel DLPAR infrastructure in a new filed named
dlpar.c. The functionality provided is for acquiring and releasing a resource
from firmware and the parsing of information returned from the
ibm,configure-connector rtas call. Additionally this exports the pSeries
reconfiguration notifier chain so that it can be invoked when device tree
updates are made.
Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/pSeries_reconfig.h')
| -rw-r--r-- | arch/powerpc/include/asm/pSeries_reconfig.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pSeries_reconfig.h b/arch/powerpc/include/asm/pSeries_reconfig.h index e482e5352e69..d4b4bfa26fb3 100644 --- a/arch/powerpc/include/asm/pSeries_reconfig.h +++ b/arch/powerpc/include/asm/pSeries_reconfig.h @@ -17,6 +17,7 @@ #ifdef CONFIG_PPC_PSERIES extern int pSeries_reconfig_notifier_register(struct notifier_block *); extern void pSeries_reconfig_notifier_unregister(struct notifier_block *); +extern struct blocking_notifier_head pSeries_reconfig_chain; #else /* !CONFIG_PPC_PSERIES */ static inline int pSeries_reconfig_notifier_register(struct notifier_block *nb) { |